Beryl Plimmer, Mark D. Apperley. Evaluating a sketch environment for novice programmers. In Gilbert Cockton, Panu Korhonen, editors, Extended abstracts of the 2003 Conference on Human Factors in Computing Systems, CHI 2003, Ft. Lauderdale, Florida, USA, April 5-10, 2003. pages 1018-1019, ACM, 2003. [doi]
Abstract is missing.